On Thursday, Mr. Biden faced questions about the efficacy of a ban on some semiautomatic rifles. The vice president noted that those weapons are involved in only a small fraction of gun deaths but said the restrictions make sense because police officers are outgunned on the streets by criminals with high-powered firearms. On Capitol Hill, Sen. Dianne Feinstein (D., Calif.) and other Democrats unveiled legislation Thursday to ban certain types of semiautomatic weapons.
While he defended the proposed ban, Mr. Biden, who emphasized that he’s a gun owner and a supporter of the Second Amendment, said he is more focused on limiting the capacity of magazines.
“There is no sporting need that I’m aware of for a magazine that holds 50 rounds,” he said.
Mr. Biden pointed to the mass shooting in Tucson, Ariz., that critically injured former Congresswoman Gabrielle Giffords. When the gunman paused to swap magazines, he was tackled, and lives were saved, the vice president said.
The president has called for limiting magazines to 10 rounds. Such restrictions would…